{"id":27678,"date":"2024-03-18T10:21:29","date_gmt":"2024-03-18T01:21:29","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/javascript%e3%81%a7%e3%81%aemath-random%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2024-03-22T16:47:09","modified_gmt":"2024-03-22T07:47:09","slug":"javascript%e3%81%a7%e3%81%aemath-random%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/javascript%e3%81%a7%e3%81%aemath-random%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"JavaScript\u3067\u306eMath.random\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>JavaScript\u306b\u304a\u3044\u3066\u3001Math.random()\u306f\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u30020\u4ee5\u4e0a1\u672a\u6e80\u306e\u7591\u4f3c\u4e71\u6570\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306f\u4f7f\u7528\u65b9\u6cd5\u3067\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">var<\/span> randomNum = <span class=\"hljs-title class_\">Math<\/span>.<span class=\"hljs-title function_\">random<\/span>();\r\n<span class=\"hljs-variable language_\">console<\/span>.<span class=\"hljs-title function_\">log<\/span>(randomNum); <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u968f\u673a\u6570<\/span>\r\n<\/code><\/pre>\n<p>\u6307\u5b9a\u3055\u308c\u305f\u7bc4\u56f2\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5024\u3092\u751f\u6210\u3057\u305f\u3044\u5834\u5408\u306f\u3001Math.random()\u3068\u4ed6\u306e\u6570\u5b66\u6f14\u7b97\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u30011\u304b\u308910\u306e\u9593\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6574\u6570\u3092\u751f\u6210\u3059\u308b\u306b\u306f\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">var<\/span> randomInt = <span class=\"hljs-title class_\">Math<\/span>.<span class=\"hljs-title function_\">floor<\/span>(<span class=\"hljs-title class_\">Math<\/span>.<span class=\"hljs-title function_\">random<\/span>() * <span class=\"hljs-number\">10<\/span>) + <span class=\"hljs-number\">1<\/span>;\r\n<span class=\"hljs-variable language_\">console<\/span>.<span class=\"hljs-title function_\">log<\/span>(randomInt); <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u4e00\u4e2a1\u523010\u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001Math.random()\u306f0\u304b\u30891\u306e\u9593\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u3092\u751f\u6210\u3057\u3001\u305d\u308c\u309210\u500d\u3057\u30660\u304b\u308910\u306e\u9593\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3092\u5f97\u307e\u3059\u3002Math.floor()\u3092\u4f7f\u7528\u3057\u3066\u5c0f\u6570\u70b9\u3092\u5207\u308a\u6368\u3066\u30660\u304b\u30899\u306e\u6574\u6570\u3092\u5f97\u305f\u5f8c\u3001\u6700\u7d42\u7684\u306b1\u3092\u8db3\u3057\u30661\u304b\u308910\u306e\u9593\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6574\u6570\u3092\u5f97\u307e\u3059\u3002<\/p>\n<p>Math.random()\u30e1\u30bd\u30c3\u30c9\u3067\u751f\u6210\u3055\u308c\u308b\u64ec\u4f3c\u4e71\u6570\u306f\u4e00\u69d8\u5206\u5e03\u3067\u3042\u308a\u3001\u4ee5\u524d\u306b\u751f\u6210\u3055\u308c\u305f\u30e9\u30f3\u30c0\u30e0\u6570\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001Math.random()\u3092\u547c\u3073\u51fa\u3059\u305f\u3073\u306b\u65b0\u3057\u3044\u30e9\u30f3\u30c0\u30e0\u6570\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript\u306b\u304a\u3044\u3066\u3001Math.random()\u306f\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u30020\u4ee5\u4e0a1\u672a\u6e80\u306e\u7591\u4f3c\u4e71\u6570\u3092\u8fd4\u3057\u307e\u3059\u3002 \u4ee5\u4e0b\u306f\u4f7f\u7528\u65b9\u6cd5\u3067\u3059\uff1a var randomNum = Math.random(); cons [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-27678","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JavaScript\u3067\u306eMath.random\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/javascript\u3067\u306emath-random\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JavaScript\u3067\u306eMath.random\u306e\u4f7f\u3044\u65b9\u306f\u4f55\u3067\u3059\u304b\uff1f\" \/>\n<meta property=\"og:description\" content=\"JavaScript\u306b\u304a\u3044\u3066\u3001Math.random()\u306f\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u30020\u4ee5\u4e0a1\u672a\u6e80\u306e\u7591\u4f3c\u4e71\u6570\u3092\u8fd4\u3057\u307e\u3059\u3002 \u4ee5\u4e0b\u306f\u4f7f\u7528\u65b9\u6cd5\u3067\u3059\uff1a var randomNum = Math.random(); 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